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In a hadronic gas with three conserved charges (electric charge, baryon number, and strangeness) we employ the hadron resonance gas model to compute both diagonal and off-diagonal susceptibilities. We model the effect of chemical freeze-out…

Nuclear Theory · Physics 2015-08-14 Jackson Ang'ong'a , Todd Springer

From the analysis of light (anti)nuclei multiplicities that were measured recently by the ALICE collaboration in Pb+Pb collisions at the center-of-mass collision energy $\sqrt{s_{NN}} =2.76$ TeV there arose a highly non-trivial question…

We confront the lattice results on QCD phase diagram for two and three flavors with the hadron resonance gas model. Taking into account the truncations in the Taylor-expansion of energy density $\epsilon$ done on the lattice at finite…

High Energy Physics - Phenomenology · Physics 2015-06-25 A. Tawfik

We present a significant extension of the quark mass density-dependent model (QMDDM), initially revised in our prior study (Lugones and Grunfeld, Phys. Rev. D 107, 043025 (2023)), where thermodynamic inconsistencies were addressed. Our…

Nuclear Theory · Physics 2023-12-27 G. Lugones , A. G. Grunfeld

We compare the trace anomaly, strangeness and baryon number fluctuations calculated in lattice QCD with expectations based on hadron resonance gas model. We find that there is a significant discrepancy between the hadron resonance gas and…

High Energy Physics - Phenomenology · Physics 2010-05-12 P. Huovinen , P. Petreczky

We update lattice QCD results for second order cumulants of conserved charge fluctuations and correlations at non-zero temperature and vanishing values of the conserved charge chemical potentials. We compare these results to hadron…

High Energy Physics - Lattice · Physics 2021-11-08 D. Bollweg , J. Goswami , O. Kaczmarek , F. Karsch , Swagato Mukherjee , P. Petreczky , C. Schmidt , P. Scior

In this paper we discuss the interacting hadron resonance gas model in presence of a constant external magnetic field. The short range repulsive interaction between hadrons are accounted through van der Waals excluded volume correction to…

High Energy Physics - Phenomenology · Physics 2021-01-01 Guruprasad Kadam , Somenath Pal , Abhijit Bhattacharyya

We study the QCD equation of state, and fluctuations of baryon number and strangeness using the hadron resonance gas model with repulsive mean field. We find that including both the predicted but not observed resonances, a.k.a. missing…

Nuclear Theory · Physics 2018-11-26 Pasi Huovinen , Peter Petreczky

We present, in the framework of the interacting hadron resonance gas, an evaluation of thermodynamical quantities. The interaction is modelled via a correction for the finite size of the hadrons. We investigate the sensitivity of the model…

Nuclear Theory · Physics 2015-06-03 A. Andronic , P. Braun-Munzinger , J. Stachel , M. Winn

Based on recent Lattice QCD (LQCD) results obtained at finite temperature, we discuss modeling of the hadronic phase of QCD in the framework of Hadron Resonance Gas (HRG) with discrete and continuous mass spectra. We focus on fluctuations…

Nuclear Theory · Physics 2015-11-25 Pok Man Lo , Michał Marczenko , Krzysztof Redlich , Chihiro Sasaki

Now that Lattice QCD calculations are beginning to include QED, it is important to better understand how hadronic properties are modified by finite-volume QED effects. They are known to exhibit power-law scaling with volume, in contrast to…

High Energy Physics - Lattice · Physics 2014-10-07 Zohreh Davoudi , Martin J. Savage

In the Onsager model of one-component hard-particle systems, the entire phase behaviour is dictated by a function of relative orientation, which represents the amount of space excluded to one particle by another at this relative…

Soft Condensed Matter · Physics 2019-02-20 Jamie M. Taylor

A new equation of state for a hot and dense hadron gas (HG) is obtained where the finite hard-core size of baryons has been incorporated in a thermodynamically consistent formulation of excluded volume correction. Our model differs from…

High Energy Physics - Phenomenology · Physics 2012-01-24 S. K. Tiwari , P. K. Srivastava , C. P. Singh

Quantum chromodynamics (QCD) with pure imaginary baryon number chemical potential mu =i theta T, where T is temperature and theta is a real number, has the Roberge-Weiss periodicity. We study the theta-dependence of the baryon number…

High Energy Physics - Phenomenology · Physics 2024-12-04 Riki Oshima , Hiroaki Kouno , Kouji Kashiwa

We compare the lattice results on QCD phase diagram for two and three flavors with the hadron resonance gas model (HRGM) calculations. Lines of constant energy density $\epsilon$ have been determined at different baryo-chemical potentials…

High Energy Physics - Phenomenology · Physics 2009-11-10 A. Tawfik

The effects of volume corrections and resonance decays (the resulting correlations between positive charges and negative charges) on cumulants of net-proton distributions and net-charge distributions are investigated by using a Monte Carlo…

Nuclear Theory · Physics 2016-12-21 Hao-jie Xu

We compare recent lattice studies of QCD thermodynamics at non-zero quark chemical potential with the thermodynamics of a hadron resonance gas. We argue that for T < Tc the equation of state derived from Monte--Carlo simulations of two…

High Energy Physics - Phenomenology · Physics 2009-11-10 F. Karsch , K. Redlich , A. Tawfik

We reformulate the treatment of density-dependent chemical potential shifts appearing in excluded-volume implementations of the hadron resonance gas model. An auxiliary classical representation is constructed in which a common energy shift…

High Energy Physics - Phenomenology · Physics 2026-02-26 Somenath Pal

The study of excited hadron spectra using Lattice QCD is currently evolving. An important step toward obtaining resonance parameters from Lattice QCD is the calculation of finite volume energy spectra. Somewhat more rigorous studies of…

High Energy Physics - Lattice · Physics 2011-12-07 John Bulava

Lattice QCD has generated a wealth of data in hadronic physics over the last two decades. Until relatively recently, most of this information has been within the "quenched approximation" where virtual quark--anti-quark pairs are neglected.…

High Energy Physics - Lattice · Physics 2009-11-10 C. R. Allton